Trial Purpose:
To evaluate successful products on the final supplied contaminant.
Date Run:
05/17/2004Experiment Procedure:
Five cleaners were selected from the previous trial. The five cleaners from the previous trials were diluted to 5% using DI water in 600 ml beakers at room temperature.
Fifteen preweighed titanium coupons were coated with ink from a Sharpie marker. The ink was applied first in a side to side manner and then in an up and down direction. Coupons were then weighed a second time to determine the amount of soil added. Three coupons were cleaned for about 2 minutes using a Gardner Straight Line Washability unit. Three coupons were placed into a Gardner Straight Line Washability unit. A Professional Painter's Rag was immersed into a beaker of the cleaning solutions and then attached to the cleaning sled. The cleaning unit was run for 75 cycles (~2 minutes). At the end of the cleaning cycle, coupons were weighed again and efficiencies were calculated.
Trial Results:
Two of the products, SC Aircraft and Micro 90, removed over 80% of the ink during manual cleaning. The other three products removed under 75%. The table lists the amount of oil added, the amount remaining and the efficiency for each coupon.
| Cleaner | Initial wt | Final wt | % Removed |
| SC Aircraft & Metal Cleaner | 0.0021 | 0.0000 | 100.00 |
| 0.0042 | 0.0001 | 97.62 | |
| 0.0028 | 0.0001 | 96.43 | |
| Micro 90 | 0.0021 | 0.0004 | 80.95 |
| 0.0023 | 0.0002 | 91.30 | |
| 0.0018 | 0.0004 | 77.78 | |
| Daraclean 282 GF | 0.0016 | 0.0002 | 87.50 |
| 0.0022 | 0.0005 | 77.27 | |
| 0.0017 | 0.0007 | 58.82 | |
| Inproclean 3800 | 0.0031 | 0.0009 | 70.97 |
| 0.0021 | 0.0011 | 47.62 | |
| 0.0024 | 0.0008 | 66.67 | |
| Beyond 2004 | 0.0020 | 0.0011 | 45.00 |
| 0.0018 | 0.0004 | 77.78 | |
| 0.0012 | 0.0004 | 66.67 |
Success Rating:
Results successful using TACT (time, agitation, concentration, and temperature, as well as rinsing and drying) and/or other cleaning chemistries examined.Conclusion:
The successful products will be used to clean some of the supplied parts.
